Study on the Transport Performance of Air-lift Pipeline System Used inMineral Mining under Water

机译：水下矿用气举管道系统运输性能研究

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An air-lift pipeline system for exploiting and transporting solid materials under waterrnwas developed with pulsed water jet as the breaker and loosing device. Driven by thernbuoyancy of the injected compressed air in the liquid, the gas-liquid-sold mixturesrnmixed by the air-lift device could be transported upward in the lifting pipe. Thernoscillating pressure distribution around the suction pipe of air-lift produced by thernself-excited oscillation pulsed jet was measured; it is found there was a fluctuatingrnuplift force acting on solid particles. The lifting efficiency model of air-lift wasrnproposed, and the operating performances of air-lift system with different water jetrnnozzles were investigated experimentally. The results indicated that concentration ofrnthe mixtures and energy efficiency of air-lift system were increased obviously with thernbreaking and agitating of waterjets.

机译：开发了一种用于在水下开采和运输固体物料的气举管道系统，该系统使用脉冲水射流作为破碎器和松动装置。由注入的压缩空气在液体中的浮力驱动，由气举装置混合的气液出售混合物可以在举升管中向上输送。测量了自激振荡脉冲射流产生的气举吸管周围的超振荡压力分布；发现存在作用在固体颗粒上的波动的升力。提出了气举升空效率模型，并实验研究了不同喷水嘴的气举系统的运行性能。结果表明，随着水射流的破裂和搅动，混合气的浓度和气举系统的能效明显提高。

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来源
《Advances and experiences with pipelines and trenchless technology for water, sewer, gas, and oil applications》|2009年|p.1987-1993|共7页
会议地点 Shanghai(CN);Shanghai(CN)
作者
Lin Yang; Zhongbo Peng; Anjun Lu;
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作者单位

College of Transportation, Chongqing Jiaotong University, Chongqing 400074,rnChina Xuefu Road, Nan’an District PH (86) 23-62652652 FAX (86) 23-62789306 rnemail: cqyanglin@yahoo.com.cn;

rnCollege of Navigation, Chongqing Jiaotong University, Chongqing 400074, China rnPH (86) 23-62652853 email: pzbpzbpzb751123@163.com;

rnCollege of Transportation, Chongqing Jiaotong University, Chongqing 400074,rnChina email: luanjunluanjun@163.com;

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原文格式 PDF
正文语种 eng
中图分类管道运输;
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Study on the Transport Performance of Air-lift Pipeline System Used inMineral Mining under Water

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